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Finding the Fourth Proportional to 35,612.60, 53,418.90 and 19,228.60

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Solution

The fourth proportional to 35,612.60, 53,418.90 and 19,228.60 is: 28,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,612.60 : 53,418.90 = 19,228.60 : x
  2. Step 2: Convert to fraction form
    35,612.60/53,418.90 = 19,228.60/x
  3. Step 3: Cross multiply
    35,612.60x = 53,418.90 × 19,228.60
  4. Step 4: Simplify right side
    35,612.60x = 1,027,170,660.54
  5. Step 5: Solve for x
    x = 1,027,170,660.54/35,612.60
  6. Step 6: Final answer
    x = 28,842.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.